On Sat, 15 Apr 2017 22:21:42 +0300
Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
> It's not possible for endpoint to be zero so the test doesn't work. If
> we break on the first iteration through the loop then endpoint is 1 and
> "ret" is uninitialized.
>
> Fixes: ebc944613567 ("drm: convert drivers to use drm_of_find_panel_or_bridge")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Acked-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
Daniel, should I directly apply this patch to drm-misc-next-fixes or
should I wait for someone else to take it?
>
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c
> index f987b4572d4a..65a3bd7a0c00 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c
> @@ -221,7 +221,8 @@ static int atmel_hlcdc_attach_endpoint(struct drm_device *dev,
> int atmel_hlcdc_create_outputs(struct drm_device *dev)
> {
> struct device_node *remote;
> - int ret, endpoint = 0;
> + int ret = -ENODEV;
> + int endpoint = 0;
>
> while (true) {
> /* Loop thru possible multiple connections to the output */
> @@ -236,7 +237,5 @@ int atmel_hlcdc_create_outputs(struct drm_device *dev)
> return ret;
> }
>
> - if (!endpoint)
> - return -ENODEV;
> return ret;
> }
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